Question: Which reflector has the shortest wavelenth?
Paraphrase: What is the name of the reflector with the shortest wavelength?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q1048295 . ?ent wdt:P3738 ?obj . ?ent wdt:P17 wd:Q408. } ORDER BY ASC(?obj)LIMIT 5 
Answer: SkyMapper